Tire tread



FIG. 1 is a perspective view of a tire tread showing our new design, it being understood that the pattern is repeated throughout the circumference thereof;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof; and,

FIG. 4 is an enlarged fragmentary front view thereof.

The broken line showing of environmental structure in the drawings is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a tire tread, as shown and described. 